/* ────────────────────────────────────────────────────────────
   NOXA × Velvet Gravity — concept site by Vesper
   Black-violet cosmic, dark luxury K-pop fantasy.
   ──────────────────────────────────────────────────────────── */

:root {
  --bg:         #05030a;
  --bg-deep:    #0a0512;
  --bg-card:    #120821;
  --violet:     #8b3dff;
  --violet-dim: #6c2bd4;
  --magenta:    #ff4d9d;
  --gold:       #d9b25c;
  --crimson:    #d73a3a;
  --text:       #f0e8ff;
  --text-dim:   #9d8fb8;
  --text-mute:  #5d4f78;
  --line:       rgba(139, 61, 255, 0.18);
  --line-bright:rgba(139, 61, 255, 0.45);

  --font-display: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', Menlo, monospace;

  --gutter:       clamp(1.5rem, 4vw, 4rem);
  --section-pad:  clamp(4rem, 10vh, 8rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ─── COSMIC BACKGROUND ─── */
.cosmic-bg {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse at 50% 20%, rgba(139, 61, 255, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(255, 77, 157, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 60%, rgba(108, 43, 212, 0.10) 0%, transparent 55%),
    var(--bg);
}
.haze {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 50%, transparent 30%, var(--bg) 100%);
  mix-blend-mode: multiply;
  opacity: 0.6;
}
.stars {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(2px 2px at 20px 30px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1px 1px at 60px 70px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 100px 200px, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 200px 50px, rgba(217,178,92,0.4), transparent),
    radial-gradient(2px 2px at 300px 100px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 400px 250px, rgba(139,61,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 500px 80px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1px 1px at 700px 350px, rgba(255,77,157,0.5), transparent),
    radial-gradient(2px 2px at 900px 150px, rgba(255,255,255,0.4), transparent);
  background-size: 1000px 600px;
  background-repeat: repeat;
  animation: drift 240s linear infinite;
  opacity: 0.7;
}
.stars-far { animation-duration: 600s; opacity: 0.4; background-size: 1500px 800px; }
@keyframes drift {
  from { transform: translateY(0); }
  to   { transform: translateY(-1200px); }
}

/* ─── TOPNAV ─── */
.topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.2rem var(--gutter);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(5, 3, 10, 0.55);
  border-bottom: 1px solid var(--line);
}
.logo {
  display: flex; align-items: center; gap: 0.6rem;
  color: var(--text);
}
.logo-sigil {
  width: 28px; height: 28px;
  color: var(--violet);
  animation: rotate-slow 30s linear infinite;
}
@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: 0.18em;
}
.nav-links {
  display: flex; gap: 2rem;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.nav-links a {
  color: var(--text-dim);
  transition: color 0.2s ease;
  position: relative;
}
.nav-links a:hover { color: var(--violet); }
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--violet); transform: scaleX(0);
  transition: transform 0.3s ease;
}
.nav-links a:hover::after { transform: scaleX(1); }
@media (max-width: 760px) {
  .nav-links { display: none; }
}

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: 5rem var(--gutter) 3rem;
  overflow: hidden;
}
.hero-sigil-wrap {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: min(90vmin, 800px);
  height: min(90vmin, 800px);
  pointer-events: none;
}
.hero-sigil {
  width: 100%; height: 100%;
  color: var(--violet);
  opacity: 0.28;
  animation: rotate-slow 90s linear infinite;
  filter: drop-shadow(0 0 80px rgba(139, 61, 255, 0.4));
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 900px;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: var(--violet);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(4rem, 14vw, 11rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #ffffff 0%, #c9b4ff 60%, #8b3dff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1.5rem;
  text-shadow: 0 0 120px rgba(139, 61, 255, 0.3);
}
.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.4vw, 1.5rem);
  font-style: italic;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.5;
}
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: center;
}
.meta-pill {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  padding: 0.5rem 1rem;
  border: 1px solid var(--line-bright);
  border-radius: 100px;
  color: var(--text);
  background: rgba(139, 61, 255, 0.04);
  text-transform: uppercase;
}
.scroll-cue {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--text-mute);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(180deg, var(--violet) 0%, transparent 100%);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%, 100% { transform: scaleY(1); opacity: 0.5; }
  50%      { transform: scaleY(1.3); opacity: 1; }
}

/* ─── SECTION FRAME ─── */
.section-head {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
  padding: 0 var(--gutter);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 1;
  letter-spacing: -0.01em;
  margin: 0.5rem 0 1rem;
  color: var(--text);
}
.section-title em {
  font-style: italic;
  color: var(--violet);
  background: linear-gradient(135deg, #b78dff 0%, #8b3dff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-tagline {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  font-style: italic;
  color: var(--text-dim);
}

/* ─── SINGLE SECTION ─── */
.single-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--line);
}
.single-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (max-width: 920px) {
  .single-grid { grid-template-columns: 1fr; }
}
.video-frame {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line-bright);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7), 0 0 60px rgba(139, 61, 255, 0.15);
}
.video-frame video {
  width: 100%;
  display: block;
  background: #000;
}
.video-caption {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.8rem 1.2rem;
  background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(5,3,10,0.95) 100%);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
}
.caption-label { color: var(--violet); font-weight: 500; }

.single-meta { display: flex; flex-direction: column; gap: 1.5rem; }
.lyric-pull {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.7;
  color: var(--text);
  padding: 1.5rem 1.5rem 1.5rem 2rem;
  border-left: 2px solid var(--violet);
  background: linear-gradient(90deg, rgba(139, 61, 255, 0.08) 0%, transparent 100%);
}
.single-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
.stat {
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--text-mute);
  margin-bottom: 0.4rem;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text);
}
.audio-player {
  width: 100%;
  filter: hue-rotate(220deg) saturate(0.7);
  border-radius: 6px;
}
.audio-player::-webkit-media-controls-panel {
  background-color: var(--bg-card);
}

/* ─── MEMBERS ─── */
.members-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--line);
}
.members-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (max-width: 1100px) {
  .members-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .members-grid { grid-template-columns: 1fr; }
}
.member-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.4s ease, border-color 0.3s ease, box-shadow 0.4s ease;
  cursor: default;
}
.member-card:hover {
  transform: translateY(-6px);
  border-color: var(--violet);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5), 0 0 50px rgba(139, 61, 255, 0.25);
}
.member-image-wrap {
  position: relative;
  aspect-ratio: 9 / 16;
  overflow: hidden;
}
.member-image-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease, filter 0.4s ease;
  filter: brightness(0.85) contrast(1.05);
}
.member-card:hover .member-image-wrap img {
  transform: scale(1.04);
  filter: brightness(1.0) contrast(1.05);
}
.member-shine {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(139, 61, 255, 0) 40%, rgba(139, 61, 255, 0.15) 50%, rgba(139, 61, 255, 0) 60%, transparent 100%);
  background-size: 200% 200%;
  background-position: 200% 200%;
  transition: background-position 0.8s ease;
  pointer-events: none;
}
.member-card:hover .member-shine {
  background-position: -50% -50%;
}
.member-info {
  padding: 1.2rem 1rem 1.4rem;
  text-align: left;
}
.member-position {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--violet);
  display: block;
  margin-bottom: 0.4rem;
}
.member-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.3rem;
}
.member-role {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  margin-bottom: 0.7rem;
  line-height: 1.5;
}
.member-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.4;
}

/* ─── TRACKLIST ─── */
.tracklist-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--line);
}
.tracks {
  list-style: none;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.track {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  align-items: start;
  gap: 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left 0.3s ease;
}
.track:hover {
  padding-left: 1rem;
}
.track-num {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--text-mute);
  letter-spacing: 0.05em;
}
.track-body { min-width: 0; }
.track-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: 0.01em;
  margin-bottom: 0.3rem;
}
.track-desc {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.5;
}
.track-desc em { color: var(--text); font-style: italic; }
.track-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line-bright);
  border-radius: 100px;
  color: var(--violet);
  white-space: nowrap;
  align-self: center;
}
.track.is-single .track-num,
.track.is-title .track-num {
  color: var(--violet);
}
.track.is-title .track-tag {
  background: var(--violet);
  color: var(--bg);
  border-color: var(--violet);
  font-weight: 700;
}

.track-audio {
  display: block;
  width: 100%;
  margin-top: 0.8rem;
  height: 32px;
  filter: hue-rotate(220deg) saturate(0.65) brightness(0.95);
  border-radius: 4px;
}
.track-alt {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--text-mute);
  margin-left: 0.5rem;
}
.track-has-audio .track-num { color: var(--violet); }

/* ─── CONCEPTS ─── */
.concepts-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--line);
}
.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.2rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.concept-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-card);
  transition: transform 0.4s ease, border-color 0.3s ease;
}
.concept-card:hover {
  transform: translateY(-4px);
  border-color: var(--violet);
}
.concept-card img {
  width: 100%;
  aspect-ratio: 9/16;
  object-fit: cover;
  filter: brightness(0.85);
  transition: filter 0.4s ease;
}
.concept-card:hover img { filter: brightness(1.0); }
.concept-card figcaption {
  padding: 1rem;
}
.concept-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--magenta);
  display: block;
  margin-bottom: 0.3rem;
}
.concept-card h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}
.concept-card p {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ─── MYTHOS ─── */
.mythos-section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--line);
}
.mythos-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (max-width: 760px) {
  .mythos-grid { grid-template-columns: repeat(2, 1fr); }
}
.mythos-card {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 1;
  background: var(--bg-card);
  transition: transform 0.4s ease;
}
.mythos-card-wide {
  grid-column: span 4;
  aspect-ratio: 16 / 7;
}
@media (max-width: 760px) {
  .mythos-card-wide { grid-column: span 2; aspect-ratio: 16 / 9; }
}
.mythos-card:hover { transform: scale(1.02); }
.mythos-card img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(1.1) brightness(0.92);
}
.mythos-card figcaption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 1rem;
  background: linear-gradient(180deg, transparent 0%, rgba(5, 3, 10, 0.95) 80%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--crimson);
}

/* ─── FOOTER ─── */
.footer {
  padding: 4rem var(--gutter) 2rem;
  border-top: 1px solid var(--line);
  margin-top: var(--section-pad);
}
.footer-inner {
  display: flex; align-items: center; gap: 2rem;
  max-width: 900px; margin: 0 auto;
  flex-wrap: wrap; justify-content: center;
  text-align: center;
}
.footer-sigil svg {
  width: 80px; height: 80px;
  color: var(--violet);
  opacity: 0.5;
  animation: rotate-slow 60s linear infinite;
}
.footer-text { display: flex; flex-direction: column; gap: 0.3rem; }
.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  letter-spacing: 0.2em;
}
.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--violet);
}
.footer-credit {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-mute);
  margin-top: 0.8rem;
}
.footer-credit em { color: var(--violet); font-style: italic; }
.footer-credit .mono { font-family: var(--font-mono); font-size: 0.75rem; }

/* ─── ACCESSIBILITY ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}